IDEA+Java+JSP+Mysql+Tomcat实现Web图书管理系统-添加管理员增删改查功能
图书名称：
图书价格：
图书作者：
出版公司：
添加
重置
admin_delete.jsp
<%@ page import=“com.sjsq.po.Book” %>
<%@ page import=“com.sjsq.dao.impl.BookDaoImpl” %>
<%@ page import=“com.sjsq.dao.BookDao” %>
<%@ page import=“com.sjsq.po.User” %><%–
Created by IntelliJ IDEA.
User: shuijianshiqing
Date: 2020/6/10
Time: 22:45
To change this template use File | Settings | File Templates.
–%>
<%@ page contentType=“text/html;charset=UTF-8” language=“java” %>
删除图书<%–头部信息–%>
<%
User user =(User)session.getAttribute(“user”);
if(user == null){
response.sendRedirect(“login.jsp”);
}else {
%>
安全退出
<%
}
%>
<%
// 设置获取注册时的编码为UTF-8
request.setCharacterEncoding(“UTF-8”);
//获取admin.jsp页面的bookid
Integer bookid=Integer.parseInt(request.getParameter(“bookid”));
//引入数据交互层
BookDao dao=new BookDaoImpl();
Book book=new Book();
book = dao.getBook(bookid);
System.out.println(“删除的图书信息：”);
System.out.println(book);
boolean flag=dao.deleteBook(bookid);
if(flag){
response.sendRedirect(“admin.jsp”);
}else{
response.sendRedirect(“error.jsp”);
}
%>
admin_detail.jsp
<%–
Created by IntelliJ IDEA.
User: shuijianshiqing
Date: 2020/5/24
Time: 10:51
To change this template use File | Settings | File Templates.
–%>
<%@ page contentType=“text/html;charset=UTF-8” language=“java” pageEncoding=“UTF-8” %>
<%@ page import=“com.sjsq.po.Book” %>
<%@ page import=“com.sjsq.po.User” %>
<%
// 获取绝对路径路径 ,开发项目一定要使用绝对路径，不然肯定出错
String path = request.getContextPath();
String basePath = request.getScheme() + “/” + request.getServerName() + “:”
- request.getServerPort() + path + “/”;
%>
图书详情<%–头部信息–%>
<%
User user =(User)session.getAttribute(“user”);
if(user == null){
response.sendRedirect(“login.jsp”);
}else {
%>
安全退出
<%
}
%>
图书详情
返回上一级
<%
Book book = (Book)session.getAttribute(“book”);
%>
图书列表
admin_do_addbook.jsp
<%–
Created by IntelliJ IDEA.
User: shuijianshiqing
Date: 2020/5/21
Time: 23:45
To change this template use File | Settings | File Templates.
–%>
<%@page import=“com.sjsq.dao.impl.UserDaoImpl”%>
<%@page import=“com.sjsq.dao.UserDao”%>
<%@page import=“com.sjsq.po.User”%>
<%@ page import=“com.sjsq.po.Book” %>
<%@ page import=“com.sjsq.dao.BookDao” %>
<%@ page import=“com.sjsq.dao.impl.BookDaoImpl” %>
<%@ page contentType=“text/html;charset=UTF-8” language=“java” pageEncoding=“UTF-8”%>
处理新增图书<%–头部信息–%>
<%
User user =(User)session.getAttribute(“user”);
if(user == null){
response.sendRedirect(“login.jsp”);
}else {
%>
安全退出
<%
}
%>
<%
// 设置获取注册时的编码为UTF-8
request.setCharacterEncoding(“UTF-8”);
Book book=new Book();
//获取admin_addbook.jsp页面提交的账号和密码
String bookname=request.getParameter(“bookname”);
Double price= Double.parseDouble(request.getParameter(“price”));
String author=request.getParameter(“author”);
String publish=request.getParameter(“publish”);
//获取admin_addbook.jsp页面提交的账号和密码设置到实体类User中
book.setBookname(bookname);
book.setPrice(price);
book.setAuthor(author);
book.setPublish(publish);
System.out.println(“添加的图书信息”);
System.out.println(book);
//引入数据交互层
BookDao dao=new BookDaoImpl();
boolean flag=dao.addBook(book);
if(flag){
response.sendRedirect(“admin.jsp”);
}else{
response.sendRedirect(“error.jsp”);
}
%>
admin_do_info.jsp
<%–
Created by IntelliJ IDEA.
User: shuijianshiqing
Date: 2020/5/24
Time: 10:51
To change this template use File | Settings | File Templates.
–%>
<%@ page contentType=“text/html;charset=UTF-8” language=“java” pageEncoding=“UTF-8” %>
<%@ page import=“com.sjsq.po.Book” %>
<%@ page import=“com.sjsq.service.BookService” %>
<%@ page import=“com.sjsq.service.impl.BookServiceImpl” %>
<%
// 获取绝对路径路径 ,开发项目一定要使用绝对路径，不然肯定出错
String path = request.getContextPath();
String basePath = request.getScheme() + “/” + request.getServerName() + “:”
- request.getServerPort() + path + “/”;
%>
书籍信息<%
Book book = new Book();
String sid = request.getParameter(“bookid”);
Integer id = Integer.parseInt(sid);
BookService service = new BookServiceImpl();
book.setBookid(id);
Book bookCur = service.getBook(book);
// 控制台打印出类的信息（日志的前身）
System.out.print(“admin_do_info.jsp的信息–>”);
System.out.println(bookCur);
session.setAttribute(“book”, bookCur);
response.sendRedirect(“admin_detail.jsp”);
%>
admin_do_updatebook.jsp
<%–
Created by IntelliJ IDEA.
User: shuijianshiqing
Date: 2020/5/21
Time: 23:45
To change this template use File | Settings | File Templates.
–%>
<%@page import=“com.sjsq.dao.impl.UserDaoImpl”%>
<%@page import=“com.sjsq.dao.UserDao”%>
<%@page import=“com.sjsq.po.User”%>
<%@ page import=“com.sjsq.po.Book” %>
<%@ page import=“com.sjsq.dao.BookDao” %>
<%@ page import=“com.sjsq.dao.impl.BookDaoImpl” %>
<%@ page contentType=“text/html;charset=UTF-8” language=“java” pageEncoding=“UTF-8”%>
处理修改图书<%–头部信息–%>
<%
User user =(User)session.getAttribute(“user”);
if(user == null){
response.sendRedirect(“login.jsp”);
}else {
%>
安全退出
<%
}
%>
<%
// 设置获取注册时的编码为UTF-8
request.setCharacterEncoding(“UTF-8”);
//获取admin_addbook.jsp页面提交的账号和密码
Integer bookid=Integer.parseInt(request.getParameter(“bookid”));
String bookname = request.getParameter(“bookname”);
Double price = Double.parseDouble(request.getParameter(“price”));
String author=request.getParameter(“author”);
String publish=request.getParameter(“publish”);
//引入数据交互层
BookDao dao=new BookDaoImpl();
Book book=new Book();
book = dao.getBook(bookid);
book.setBookname(bookname);
book.setPrice(price);
book.setAuthor(author);
book.setPublish(publish);
System.out.println(“修改的图书信息”);
System.out.println(book);
boolean flag=dao.updateBook(book);
if(flag){
response.sendRedirect(“admin.jsp”);
}else{
response.sendRedirect(“error.jsp”);
}
%>
admin_update.jsp
<%@ page import=“com.sjsq.po.Book” %>
<%@ page import=“com.sjsq.dao.impl.BookDaoImpl” %>
<%@ page import=“com.sjsq.dao.BookDao” %>
<%@ page import=“com.sjsq.po.User” %><%–
Created by IntelliJ IDEA.
User: shuijianshiqing
Date: 2020/5/21
Time: 23:14
To change this template use File | Settings | File Templates.
–%>
<%@ page language=“java” contentType=“text/html; charset=UTF-8” pageEncoding=“UTF-8” %>
修改图书<%–头部信息–%>
<%
User user =(User)session.getAttribute(“user”);
if(user == null){
response.sendRedirect(“login.jsp”);
}
%>
修改图书
<%
//获取admin.jsp页面的bookid
Integer bookid=Integer.parseInt(request.getParameter(“bookid”));
BookDao dao=new BookDaoImpl();
Book book=new Book();
book = dao.getBook(bookid);
%>
图书名称：
图书价格：
图书作者：
出版公司：
修改
重置
error.jsp
<%–
Created by IntelliJ IDEA.
User: shuijianshiqing
Date: 2020/6/10
Time: 22:28
To change this template use File | Settings | File Templates.
–%>
<%@ page contentType=“text/html;charset=UTF-8” language=“java” %>
错误页面操作出错，请回到上一个页面！
login.jsp
<%–
Created by IntelliJ IDEA.
User: shuijianshiqing
Date: 2020/5/19
Time: 22:44
To change this template use File | Settings | File Templates.
–%>
<%@ page contentType=“text/html;charset=UTF-8” language=“java” pageEncoding=“UTF-8” %>
<%
// 获取绝对路径路径 ,开发项目一定要使用绝对路径，不然肯定出错
String path = request.getContextPath();
String basePath = request.getScheme() + “/” + request.getServerName() + “:”
- request.getServerPort() + path + “/”;
%>
用户登录用户登录
---正在美化中---
注册
2.后端
User
package com.sjsq.po;
import java.io.Serializable;
/**
-
@author shuijianshiqing
-
@date 2020/5/19 22:19
-
用户的实体类
*/
public class User implements Serializable {
// 增加序列号,作用是反序列化的时候不会报错，切能进行IO的持久化
public static final long serialVersionUID = 1L;
private Integer id;
private String name;
private String password;
private String email;
private String phone;
private Integer isadmin;
public static long getSerialVersionUID() {
return serialVersionUID;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public Integer getIsadmin() {
return isadmin;
}
public void setIsadmin(Integer isadmin) {
this.isadmin = isadmin;
}
@Override
public String toString() {
return “User{” +
“id=” + id +
“, name='” + name + ‘’’ +
“, password='” + password + ‘’’ +
“, email='” + email + ‘’’ +
“, phone='” + phone + ‘’’ +
“, isadmin=” + isadmin +
‘}’;
}
}
UserDaoImpl
package com.sjsq.dao.impl;
import com.sjsq.dao.UserDao;
import com.sjsq.po.User;
import com.sjsq.utils.BaseDao;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
/**
-
@author shuijianshiqing
-
@date 2020/5/20 22:15
-
实现UserDao接口
*/
public class UserDaoImpl implements UserDao {
/**
-
用户登录
-
@param user
-
@return
*/
@Override
public User login(User user) {
Connection con = null;
PreparedStatement ps = null;
ResultSet rs = null;
try {
// 1.获取数据库连接
con = BaseDao.getConnection();
// 2.写sql
String sql = “select * from user where name = ? and password = ?”;
// 3.预编译
ps = con.prepareStatement(sql);
// 4.设置值
ps.setObject(1,user.getName());
ps.setObject(2,user.getPassword());
rs = ps.executeQuery();
User users = null;
if(rs.next()){
users = new User();
// 从数据库中获取值到实体类的setter方法中
users.setId(rs.getInt(“id”));
users.setName(rs.getString(“name”));
users.setPassword(rs.getString(“password”));
users.setEmail(rs.getString(“email”));
users.setPhone(rs.getString(“phone”));
users.setIsadmin(rs.getInt(“isadmin”));
// 返回的是你查询出来的完整的对象
return users;
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}finally {
// 关闭资源，避免出现异常
BaseDao.close(con,ps,rs);
}
return null;
}
/**
-
用户注册
-
@param user
-
@return
*/
@Override
public boolean register(User user) {
String sql = “insert into user values (0,?,?,?,?,0)”;
List list = new ArrayList();
list.add(user.getName());
list.add(user.getPassword());
list.add(user.getEmail());
list.add(user.getPhone());
boolean flag = BaseDao.addUpdateDelete(sql,list.toArray());
if(flag){
return true;
}else {
return false;
}
}
/**
-
查询用户信息
-
@param sql
-
@param arr
-
@return
*/
@Override
public List selectUser(String sql, Object[] arr) {
Connection con = null;
PreparedStatement ps = null;
ResultSet rs = null;
try {
// 1.连接数据库
con = BaseDao.getConnection();
// 2.预编译
ps = con.prepareStatement(sql);
if(arr != null){
for (int i = 0; i < arr.length; i++) {
ps.setObject(i+1,arr[i]);
}
}
// 3.执行sql
rs = ps.executeQuery();
// 4.保存查询出来的数据到list
List list = new ArrayList();
while(rs.next()){
User user = new User();
// 从数据库中获取值到实体类的setter方法中
user.setId(rs.getInt(“id”));
user.setName(rs.getString(“name”));
user.setPassword(rs.getString(“password”));
user.setEmail(rs.getString(“email”));
user.setPhone(rs.getString(“phone”));
user.setIsadmin(rs.getInt(“isadmin”));
// 测试数据
System.out.println(“Dao层测试日志，显示用户信息：”);
System.out.println(user);
// 将对象保存到list中
list.add(user);
}
return list;
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}finally {
// 关闭资源，避免出现异常
BaseDao.close(con,ps,rs);
}
return null;
}
}
BookDao
package com.sjsq.dao;
import com.sjsq.po.Book;
import java.util.List;
/**
-
@author shuijianshiqing
-
@date 2020/5/20 23:13
-
图书信息接口
*/
public interface BookDao {
/**
-
查询图书信息
-
@param sql
-
@param arr
-
@return
*/
public List select(String sql,Object[] arr);
/**
-
根据图书编号进行查询
-
@param id
-
@return
*/
public Book getBook(Integer id);
/**
-
图书新增
-
@param book
-
@return
*/
public boolean addBook(Book book);
/**
-
图书修改
-
@param book
-
@return
*/
public boolean updateBook(Book book);
/**
-
删除图书
-
@param bookid
-
@return
*/
public boolean deleteBook(Integer bookid);
}
BookDaoImpl
package com.sjsq.dao.impl;
import com.sjsq.dao.BookDao;
import com.sjsq.po.Book;
import com.sjsq.utils.BaseDao;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
/**
-
@author shuijianshiqing
-
@date 2020/5/20 23:15
*/
public class BookDaoImpl implements BookDao {
@Override
public List select(String sql, Object[] arr) {
Connection con = null;
PreparedStatement ps = null;
ResultSet rs = null;
try {
// 1.连接数据库
con = BaseDao.getConnection();
// 2.预编译
ps = con.prepareStatement(sql);
if(arr != null){
for (int i = 0; i < arr.length; i++) {
// 传入sql的参数
ps.setObject(i+1,arr[i]);
}
}
// 3.执行sql
rs = ps.executeQuery();
// 4.保存查询出来的数据到list
List list = new ArrayList();
while (rs.next()){
Book book = new Book();
book.setBookid(rs.getInt(“bookid”));
book.setBookname(rs.getString(“bookname”));
book.setPrice(rs.getDouble(“price”));
book.setAuthor(rs.getString(“author”));
book.setPicture(rs.getString(“picture”));
book.setPublish(rs.getString(“publish”));
list.add(book);
}
return list;
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}finally {
// 关闭资源，避免出现异常
BaseDao.close(con,ps,rs);
}
return null;
}
@Override
public Book getBook(Integer id) {
Connection con = null;
PreparedStatement ps = null;
ResultSet rs = null;
try {
// 1.连接数据库
con = BaseDao.getConnection();
// 2.预编译
String sql = “select * from book where bookid = ?”;
ps = con.prepareStatement(sql);
ps.setInt(1,id);
// 3.执行sql
rs = ps.executeQuery();
while (rs.next()){
Book book = new Book();
book.setBookid(rs.getInt(“bookid”));
book.setBookname(rs.getString(“bookname”));
book.setPrice(rs.getDouble(“price”));
book.setAuthor(rs.getString(“author”));
book.setPicture(rs.getString(“picture”));
book.setPublish(rs.getString(“publish”));
return book;
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}finally {
// 关闭资源，避免出现异常
BaseDao.close(con,ps,rs);
}
return null;
}
/**
-
新增图书
-
@param book
-
@return
*/
@Override
public boolean addBook(Book book) {
String sql = “insert into book values (0,?,?,?,null,?)”;
List list = new ArrayList();
list.add(book.getBookname());
list.add(book.getPrice());
list.add(book.getAuthor());
list.add(book.getPublish());
boolean flag = BaseDao.addUpdateDelete(sql,list.toArray());
if(flag){
return true;
}else {
return false;
}
}
/**
-
更新图书
-
@param book
-
@return
*/
@Override
public boolean updateBook(Book book) {
String sql = “update book set bookname=?,price=?,author=?,publish=? where bookid=?”;
List list = new ArrayList();
list.add(book.getBookname());
list.add(book.getPrice());
list.add(book.getAuthor());
list.add(book.getPublish());
list.add(book.getBookid());
boolean flag = BaseDao.addUpdateDelete(sql,list.toArray());
if(flag){
return true;
}else {
return false;
}
}
/**
-
删除图书
-
@param bookid
-
@return
*/
@Override
public boolean deleteBook(Integer bookid) {
String sql = “delete from book where bookid=?”;
List list = new ArrayList();
list.add(bookid);
boolean flag = BaseDao.addUpdateDelete(sql,list.toArray());
if(flag){
return true;
}else {
return false;
}
}
}
BookServiceImpl
package com.sjsq.service.impl;
import com.sjsq.dao.BookDao;
import com.sjsq.dao.impl.BookDaoImpl;
import com.sjsq.po.Book;
import com.sjsq.service.BookService;
import java.util.ArrayList;
import java.util.List;
/**
-
@author shuijianshiqing
-
@date 2020/5/20 23:42
-
Book的Service实现层
*/
public class BookServiceImpl implements BookService {
private BookDao dao = new BookDaoImpl();
/**
-
查询所有图书信息
-
@param book
-
@return
*/
@Override
public List select(Book book) {
StringBuffer sql = new StringBuffer("select * from book where 1 = 1 ");
List list = new ArrayList();
if(book != null){
// 根据bookid来查找对应的书籍
if(book.getBookid() != null && book.getBookid() != 0){
sql.append(" and bookid = ?");
list.add(book.getBookid());
}
// 根据bookname来查找对应的书籍
if(book.getBookname() != null){
System.out.println(“图书名称：”+book.getBookname());
sql.append(" and bookname = ?");
list.add(book.getBookname());
}
}
return dao.select(sql.toString(),list.toArray());
}
/**
-
根据图书编号查询信息
-
@param book
-
@return
*/
@Override
public Book getBook(Book book) {
if(book.getBookid() != null && book.getBookid() != 0){
return dao.getBook(book.getBookid());
}
return null;
}
}
四、感悟及商务合作
========================================================================
实现管理增删改查用了一晚上时间，感觉代码越写越顺了。
1.项目相关
备注1：这个项目是基于上个项目写的，上个项目地址：
IDEA+Java+JSP+Mysql+Tomcat实现Web图书管理系统
备注2：要是不知道IDEA如何搭建WEB项目，请移步：
IDEA创建Web项目详细说明
备注3：要是您需要学生成绩管理系统(界面较友好)，请移步：
学生成绩管理系统
备注4：要是侵犯到您的权益，请通知我删除此文章。
五、其他
===================================================================
1.其他系统实现
JavaWeb系统系列实现
Java+JSP实现学生图书管理系统
Java+JSP实现学生信息管理系统
Java+JSP实现用户信息管理系统
Java+Servlet+JSP实现航空订票系统
Java+Servlet+JSP实现房屋租赁管理系统